Hot Rolled Steel C1045

Grade Summary: Medium carbon steels suitable for machining, forging, heat treating, cold drawing, etc. When heat treated, 1045 provides greater strength than can be obtained from lower carbon steels. Grade C1045 can be hammer forged, machinability is good, but forming and welding qualities are limited.

Typical Applications: Axles, machinery parts, stud bolts, ordinary shafts, pinions, gears, rock screens, forming dies, tool shanks.

Available products: Round Bar,Shafting Square Bar and Plate.

Bar Products

Typical Chemical Analysis: C – .43/.50 *Mn – .60/.90 *P – .040 Max. *S – .050 Max.

Typical Mechanical Properties**:

As Rolled Normalized Annealed
Tensile Strength (PSI) 90,000 87,000 80,000
Yield Point (PSI) 59,000 58,000 48,000
Elongation 26 28 30
Brinell Hardness 201 192 159

* Chemical Analysis will vary on each heat number
** Tests based on representative.
*** % in 2”

Plate Products

Typical Chemical Analysis: C – .42/.50 *Mn – .60/.90 *P – .040 Max. *S – .050 Max.
Typical Mechanical Properties**:

Tensile Strength (PSI) 95,000
Yield Point (PSI) 56,000
Elongation 21
Brinell Hardness 207

* Chemical Analysis will vary on each heat number
** All values are averaged and are representative.
*** % in 2”

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